These guides will help you get up and running quickly with SSL for your Linux VPS web server.
Use TLS/SSL to Provide Transport Layer Encryption for HTTP Connections with Nginx.
How to prepare and submit a request for a commercially-signed SSL certificate.
Creating an SSL certificate for personal or internal organizational use on a Linux server.
How to serve multiple SSL-enabled websites from a single public IP using the SubjectAltName feature of OpenSSL.